This FMV game came out for everything under the sun, including the saturn, PS1 and sega CD. A 3DO version is mentioned on wikipedia but I can't find much about it elsewhere. Cryptically, wikipedia indicates the 3DO version was "prototyped as Turbo Blaster", suggesting maybe it didn't get a retail release. In that case, has a prototype ever surfaced? I was looking at a compatibility list on a different forum for a 3DO emulator and the list contained Turbo Blaster in it in addition to 2 dozen other 3DO games (though with no comments on compatibility with the emulator so maybe it was just a copied list from somewhere else).
Turbo Blaster is the so called name for the prototype of Road Blaster but I'm not sure if it even existed in prototype form. If it did it hasn't been leaked yet.